Protein complex that plays a role in determining cell polarity by directing the localized assembly of actin filaments at polarization sites; in Saccharomyces the polarisome includes Bni1p, Spa2p, Pea2p, and Bud6p. [ http://www.ncbi.nlm.nih.gov/pubmed/9632790 http://www.ncbi.nlm.nih.gov/pubmed/14998522 http://www.ncbi.nlm.nih.gov/pubmed/14734532 ]